Perhaps you should try some spelling variations:
"instituto tecnologico nacional" » "instituto oncologico nacional", "instituto tecnico nacional", "instituto tecnologico nacionales"
"instituto pedagogico nacional" » "instituto oncologico nacional", "instituto pedagogico tradicional", "instituto pedagogicos tradicional", "instituto pedagogico institucional"
"instituto pedagogica nacional" » "institucion pedagogica nacional", "institutes pedagogical nacional", "instituto psicopedagogico nacional"
"instituto ecologico nacional" » "instituto oncologico nacional", "instituto neurologico nacional", "instituto agroecologico nacional", "instituto economico nacional", "instituto colegio nacional"
"instituto geologico nacional" » "instituto neurologico nacional", "instituto oncologico nacional", "instituto agroecologico nacional", "instituto geologico regional", "instituto economico nacional"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("instituto ecologico nacional") or ((((("instituto pedagogico nacional") OR ("instituto tecnologico nacional"))) or ("instituto pedagogica nacional"))))) or ("instituto geologico nacional"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("instituto ecologico nacional") OR ((((("instituto pedagogico nacional") OR ("instituto tecnologico nacional"))) OR ("instituto pedagogica nacional"))))) OR ("instituto geologico nacional"))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"instituto ecologico nacional\") or (((((\"instituto pedagogico nacional\") OR (\"instituto tecnologico nacional\"))) or (\"instituto pedagogica nacional\"))))) or (\"instituto geologico nacional\"))*".
• Removing quotes may allow a broader search: (((( instituto ecologico nacional ) or ((((( instituto pedagogico nacional ) OR ( instituto tecnologico nacional ))) or ( instituto pedagogica nacional ))))) or ( instituto geologico nacional ))*.